31565426214 has 32 divisors (see below), whose sum is σ = 72165530880. Its totient is φ = 9016695072.

The previous prime is 31565426119. The next prime is 31565426239. The reversal of 31565426214 is 41262456513.

It is a super-2 number, since 2×31565426214² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114072 + ... + 275940.

It is an arithmetic number, because the mean of its divisors is an integer number (2255172840).

Almost surely, 2^31565426214 is an apocalyptic number.

31565426214 is an abundant number, since it is smaller than the sum of its proper divisors (40600104666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31565426214 is a wasteful number, since it uses less digits than its factorization.

31565426214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166524.

The product of its digits is 172800, while the sum is 39.

The spelling of 31565426214 in words is "thirty-one billion, five hundred sixty-five million, four hundred twenty-six thousand, two hundred fourteen".